Voice rate +wvr – Multi-Tech Systems MMCModem GPRS (MTMMC-G) User Manual
Page 119
Chapter 13 – Specific AT Commands
Multi-Tech Systems, Inc. Wireless GSM/GPRS AT Commands (Document Number S000293I)
119
Voice Rate +WVR
Description:
This command allows the voice rate for bearer voice to be configured for outgoing and incoming calls.
Note:
According to the modem’s capabilities, the following voice coding type are allowed:
•
Modem that supports AMR: FR, EFR, AMR-FR, AMR-HR are supported.
•
Modem that does not support AMR: FR, EFR, HR are supported.
Values:
Voice coding type.
Voice Coding
Type
Preferred
Type
Other Supported Types
Default Values
0
FR
Default incoming voice calls rate
1 EFR
FR
2 HR
FR
3 FR
HR
4 HR
EFR
5
EFR
HR, FR
Default outgoing voice calls rate
6
AMR-FR
EFR, AMR-HR, FR
7
AMR-FR
EFR, AMR-HR, HR, FR
8
AMR-HR
HR, AMR-FR, EFR, FR
9
AMR-HR
AMR-FR, EFR, FR
10 AMR-HR AMR-FR,
FR
11
AMR-HR
HR, AMR-FR, FR
12 AMR-FR AMR-HR,
FR
13 AMR-FR FR,
AMR-HR
14
AMR-FR
FR, AMR-HR, HR
15 EFR
FR,
HR
Command syntax: AT+WVR=
AT+WVR= [
AT+WVR? +WDR:
OK
Note:
Command
Possible responses
AT+WVR=1
Note: Configure voice type FR and EFR
for outgoing calls only
OK
Note: Bearer is configured for outgoing calls
AT+WVR=1,4
Note: Configure voice type FR and EFR
for outgoing calls and HR and EFR for
incoming calls
OK
Note: Bearer is configured for outgoing calls and
incoming calls
AT+WVR=,4
Note: Configure voice type HR and
EFR for incoming calls
OK
Note: Bearer is unchanged for outgoing calls and
configured for incoming calls
AT+WVR=6
Note: Syntax error
+CME ERROR: 3
Note: Syntax error
AT+WVR?
Note: Ask for the current values
+WVR: 1,1
OK
AT+WVR=? +WVR:
(0,2,3),(0,2,3)
Note: If Half Rate is available
AT+WVR=? +WVR:
(0,1),(0,1)
Note: If EFR available.
AT+WVR=? +WVR:
(0),(0)
Note: If neither HR nor EFR is available
AT+WVR=? +WVR:
(0-5,15),(0-5,15)
Note: If HR and EFR are available
AT+WVR=? +WVR:
(0,2,3,10,11,12,13,14),(0,2,3,10,11,12,13,14)
Note: If Half Rate and AMR are available
AT+WVR=? +WVR:
(0,1,6,9,10,11,12,13),(0,1,6,9,10,11,12,13)
Note: If EFR and AMR are available
AT+WVR=? +WVR:
(0,10,12,13),(0,10,12,13)
Note: If AMR is available
AT+WVR=? +WVR:
(0-15),(0-15)
Note: If HR,EFR, and AMR are available